mongodb - Mongo DB update operation -


below query wrongly update mongodb

query:

d.update({'objects.out.interface': 'down', 'ip': '192.168.106.11', 'inid': 19, 'session': 1, 'objects.id': 4}, {$set: {'objects.$.score':888888}})

why score 888888 updated in objects.id:2 not in objects.id:4 ?

update result:

{         "_id" : objectid("59b7ebec9315080ac2801468"),         "session" : 1,         "inid" : 19,         "ip" : "192.168.106.11",         "hostname" : "npppp",         "jobname" : "nexus2-12-september-19-45-08",         "authentication" : "{\"username\":\"gowtham\",\"password\":\"pppppp\"}",         "objects" : [                 {                         "name" : "self",                         "out" : {                                 "status" : "reachable"                         },                         "type" : "self_check",                         "id" : 1,                         "rank" : [                                 {                                         "regex" : {                                                 "status" : "down"                                         },                                         "score" : 0                                 },                                 {                                         "regex" : {                                                 "status" : "reachable"                                         },                                         "score" : 100                                 }                         ],                         "monitor" : "self",                         "score" : 100                 },                 {                         "name" : "eth1/1",                         "out" : {                                 "interface" : "down"                         },                         "type" : "cis_sw_int",                         "id" : 2,                         "rank" : [                                 {                                         "regex" : {                                                 "interface" : "down"                                         },                                         "score" : 0                                 },                                 {                                         "regex" : {                                                 "interface" : "up"                                         },                                         "score" : 100                                 }                         ],                         "monitor" : "bits,duplex,speed,error",                         "score" : 888888                 },                 {                         "name" : "eth1/37",                         "out" : {                                 "interface" : "down"                         },                         "type" : "cis_sw_int",                         "id" : 3,                         "rank" : [                                 {                                         "regex" : {                                                 "interface" : "down"                                         },                                         "score" : 0                                 },                                 {                                         "regex" : {                                                 "interface" : "up"                                         },                                         "score" : 100                                 }                         ],                         "monitor" : "bits,duplex,speed,error"                 },                 {                         "name" : "eth1/46",                         "out" : {                                 "interface" : "down"                         },                         "type" : "cis_sw_int",                         "id" : 4,                         "rank" : [                                 {                                         "regex" : {                                                 "interface" : "down"                                         },                                         "score" : 0                                 },                                 {                                         "regex" : {                                                 "interface" : "up"                                         },                                         "score" : 100                                 }                         ],                         "monitor" : "bits,duplex,speed,error"                 }         ],         "timeout" : 10,         "td" : isodate("2017-09-12t19:45:08.743z") }

because have 2 conditions subdocuments:

'objects.out.interface': 'down',  'objects.id': 4

positional operator uses first matching sub-document

the positional $ operator acts placeholder first element matches query document,

in case first match 'objects.out.interface': 'down' 1 id:2.

you need change filter use $elemmatch use both conditions identify subdocument:

{     'ip': '192.168.106.11',      'inid': 19,      'session': 1,      'objects': {         $elemmatch: {             'out.interface': 'down',              'id': 4         }     } }

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